From dab741a80699f86e86c91718872a052cca9bbb25 Mon Sep 17 00:00:00 2001 From: Dan Klein Date: Mon, 24 Aug 2015 13:22:48 +0300 Subject: Fixed dependencies of Control Plane to use external_lib sources --- .../python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp | 389 +++++++++++++++++++++ 1 file changed, 389 insertions(+) create mode 100644 external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp (limited to 'external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp') diff --git a/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp new file mode 100644 index 00000000..00ed1595 --- /dev/null +++ b/external_libs/python/pyzmq-14.7.0/bundled/zeromq/src/msg.cpp @@ -0,0 +1,389 @@ +/* + Copyright (c) 2007-2015 Contributors as noted in the AUTHORS file + + This file is part of libzmq, the ZeroMQ core engine in C++. + + libzmq is free software; you can redistribute it and/or modify it under + the terms of the GNU Lesser General Public License (LGPL) as published + by the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + As a special exception, the Contributors give you permission to link + this library with independent modules to produce an executable, + regardless of the license terms of these independent modules, and to + copy and distribute the resulting executable under terms of your choice, + provided that you also meet, for each linked independent module, the + terms and conditions of the license of that module. An independent + module is a module which is not derived from or based on this library. + If you modify this library, you must extend this exception to your + version of the library. + + libzmq is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public + License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see . +*/ + +#include "msg.hpp" +#include "../include/zmq.h" + +#include +#include +#include + +#include "stdint.hpp" +#include "likely.hpp" +#include "metadata.hpp" +#include "err.hpp" + +// Check whether the sizes of public representation of the message (zmq_msg_t) +// and private representation of the message (zmq::msg_t) match. + +typedef char zmq_msg_size_check + [2 * ((sizeof (zmq::msg_t) == sizeof (zmq_msg_t)) != 0) - 1]; + +bool zmq::msg_t::check () +{ + return u.base.type >= type_min && u.base.type <= type_max; +} + +int zmq::msg_t::init () +{ + u.vsm.metadata = NULL; + u.vsm.type = type_vsm; + u.vsm.flags = 0; + u.vsm.size = 0; + file_desc = -1; + return 0; +} + +int zmq::msg_t::init_size (size_t size_) +{ + file_desc = -1; + if (size_ <= max_vsm_size) { + u.vsm.metadata = NULL; + u.vsm.type = type_vsm; + u.vsm.flags = 0; + u.vsm.size = (unsigned char) size_; + } + else { + u.lmsg.metadata = NULL; + u.lmsg.type = type_lmsg; + u.lmsg.flags = 0; + u.lmsg.content = + (content_t*) malloc (sizeof (content_t) + size_); + if (unlikely (!u.lmsg.content)) { + errno = ENOMEM; + return -1; + } + + u.lmsg.content->data = u.lmsg.content + 1; + u.lmsg.content->size = size_; + u.lmsg.content->ffn = NULL; + u.lmsg.content->hint = NULL; + new (&u.lmsg.content->refcnt) zmq::atomic_counter_t (); + } + return 0; +} + +int zmq::msg_t::init_data (void *data_, size_t size_, msg_free_fn *ffn_, + void *hint_) +{ + // If data is NULL and size is not 0, a segfault + // would occur once the data is accessed + zmq_assert (data_ != NULL || size_ == 0); + + file_desc = -1; + + // Initialize constant message if there's no need to deallocate + if (ffn_ == NULL) { + u.cmsg.metadata = NULL; + u.cmsg.type = type_cmsg; + u.cmsg.flags = 0; + u.cmsg.data = data_; + u.cmsg.size = size_; + } + else { + u.lmsg.metadata = NULL; + u.lmsg.type = type_lmsg; + u.lmsg.flags = 0; + u.lmsg.content = (content_t*) malloc (sizeof (content_t)); + if (!u.lmsg.content) { + errno = ENOMEM; + return -1; + } + + u.lmsg.content->data = data_; + u.lmsg.content->size = size_; + u.lmsg.content->ffn = ffn_; + u.lmsg.content->hint = hint_; + new (&u.lmsg.content->refcnt) zmq::atomic_counter_t (); + } + return 0; + +} + +int zmq::msg_t::init_delimiter () +{ + u.delimiter.metadata = NULL; + u.delimiter.type = type_delimiter; + u.delimiter.flags = 0; + return 0; +} + +int zmq::msg_t::close () +{ + // Check the validity of the message. + if (unlikely (!check ())) { + errno = EFAULT; + return -1; + } + + if (u.base.type == type_lmsg) { + + // If the content is not shared, or if it is shared and the reference + // count has dropped to zero, deallocate it. + if (!(u.lmsg.flags & msg_t::shared) || + !u.lmsg.content->refcnt.sub (1)) { + + // We used "placement new" operator to initialize the reference + // counter so we call the destructor explicitly now. + u.lmsg.content->refcnt.~atomic_counter_t (); + + if (u.lmsg.content->ffn) + u.lmsg.content->ffn (u.lmsg.content->data, + u.lmsg.content->hint); + free (u.lmsg.content); + } + } + + if (u.base.metadata != NULL) + if (u.base.metadata->drop_ref ()) + delete u.base.metadata; + + // Make the message invalid. + u.base.type = 0; + + return 0; +} + +int zmq::msg_t::move (msg_t &src_) +{ + // Check the validity of the source. + if (unlikely (!src_.check ())) { + errno = EFAULT; + return -1; + } + + int rc = close (); + if (unlikely (rc < 0)) + return rc; + + *this = src_; + + rc = src_.init (); + if (unlikely (rc < 0)) + return rc; + + return 0; +} + +int zmq::msg_t::copy (msg_t &src_) +{ + // Check the validity of the source. + if (unlikely (!src_.check ())) { + errno = EFAULT; + return -1; + } + + int rc = close (); + if (unlikely (rc < 0)) + return rc; + + if (src_.u.base.type == type_lmsg) { + + // One reference is added to shared messages. Non-shared messages + // are turned into shared messages and reference count is set to 2. + if (src_.u.lmsg.flags & msg_t::shared) + src_.u.lmsg.content->refcnt.add (1); + else { + src_.u.lmsg.flags |= msg_t::shared; + src_.u.lmsg.content->refcnt.set (2); + } + } + + if (src_.u.base.metadata != NULL) + src_.u.base.metadata->add_ref (); + + *this = src_; + + return 0; + +} + +void *zmq::msg_t::data () +{ + // Check the validity of the message. + zmq_assert (check ()); + + switch (u.base.type) { + case type_vsm: + return u.vsm.data; + case type_lmsg: + return u.lmsg.content->data; + case type_cmsg: + return u.cmsg.data; + default: + zmq_assert (false); + return NULL; + } +} + +size_t zmq::msg_t::size () +{ + // Check the validity of the message. + zmq_assert (check ()); + + switch (u.base.type) { + case type_vsm: + return u.vsm.size; + case type_lmsg: + return u.lmsg.content->size; + case type_cmsg: + return u.cmsg.size; + default: + zmq_assert (false); + return 0; + } +} + +unsigned char zmq::msg_t::flags () +{ + return u.base.flags; +} + +void zmq::msg_t::set_flags (unsigned char flags_) +{ + u.base.flags |= flags_; +} + +void zmq::msg_t::reset_flags (unsigned char flags_) +{ + u.base.flags &= ~flags_; +} + +int64_t zmq::msg_t::fd () +{ + return file_desc; +} + +void zmq::msg_t::set_fd (int64_t fd_) +{ + file_desc = fd_; +} + +zmq::metadata_t *zmq::msg_t::metadata () const +{ + return u.base.metadata; +} + +void zmq::msg_t::set_metadata (zmq::metadata_t *metadata_) +{ + assert (metadata_ != NULL); + assert (u.base.metadata == NULL); + metadata_->add_ref (); + u.base.metadata = metadata_; +} + +void zmq::msg_t::reset_metadata () +{ + if (u.base.metadata) { + if (u.base.metadata->drop_ref ()) + delete u.base.metadata; + u.base.metadata = NULL; + } +} + +bool zmq::msg_t::is_identity () const +{ + return (u.base.flags & identity) == identity; +} + +bool zmq::msg_t::is_credential () const +{ + return (u.base.flags & credential) == credential; +} + +bool zmq::msg_t::is_delimiter () const +{ + return u.base.type == type_delimiter; +} + +bool zmq::msg_t::is_vsm () +{ + return u.base.type == type_vsm; +} + +bool zmq::msg_t::is_cmsg () +{ + return u.base.type == type_cmsg; +} + +void zmq::msg_t::add_refs (int refs_) +{ + zmq_assert (refs_ >= 0); + + // Operation not supported for messages with metadata. + zmq_assert (u.base.metadata == NULL); + + // No copies required. + if (!refs_) + return; + + // VSMs, CMSGS and delimiters can be copied straight away. The only + // message type that needs special care are long messages. + if (u.base.type == type_lmsg) { + if (u.lmsg.flags & msg_t::shared) + u.lmsg.content->refcnt.add (refs_); + else { + u.lmsg.content->refcnt.set (refs_ + 1); + u.lmsg.flags |= msg_t::shared; + } + } +} + +bool zmq::msg_t::rm_refs (int refs_) +{ + zmq_assert (refs_ >= 0); + + // Operation not supported for messages with metadata. + zmq_assert (u.base.metadata == NULL); + + // No copies required. + if (!refs_) + return true; + + // If there's only one reference close the message. + if (u.base.type != type_lmsg || !(u.lmsg.flags & msg_t::shared)) { + close (); + return false; + } + + // The only message type that needs special care are long messages. + if (!u.lmsg.content->refcnt.sub (refs_)) { + // We used "placement new" operator to initialize the reference + // counter so we call the destructor explicitly now. + u.lmsg.content->refcnt.~atomic_counter_t (); + + if (u.lmsg.content->ffn) + u.lmsg.content->ffn (u.lmsg.content->data, u.lmsg.content->hint); + free (u.lmsg.content); + + return false; + } + + return true; +} -- cgit 1.2.3-korg